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一般剧场的一楼中部地区音质常常不好,这和直达声后的短延迟反射声的分布状况有关.本试验用电声模拟几个不同延迟(20～110毫秒)的反射声,组成若干种延迟声的组合,在露天条件下对各种组合进行了“成对比较”的主观音质评价.声源采用了在露天录制的音乐、语音等三种节目. 从初步试验结果的统计分析中,讨论了在没有混响的情况下,不同的延迟声对于音质效果的影响.除此之外,还讨论了各项评价指标之间的相关趋势.
The sound quality of the central theater on the first floor of the general theater is often not good, which is related to the distribution of the short delay reflected sound after direct sound.This experiment simulates several reflections with different delays (20-110 ms) Delay sound combinations, under the open air conditions for various combinations of “paired comparison” of the subjective sound quality evaluation.The sound source used in open-air recording of music, voice and other three programs.From the preliminary test results of the statistical analysis, The effects of different delayed sounds on sound quality are discussed in the absence of reverberation, and in addition to the trend of correlation between the various measures of evaluation.